The idiom rain is four words.

There are four words in the idiom of rain:

Wind and rain, storm, late rain, wind and rain, wind and rain, rain in all directions, Chu Yunyu, tears rain, dream rain, wind rain, wind rain, rice rain, spring breeze and summer rain, spring breeze and rain, foundation rain.

Meal storm, rough storm rain, chutian sex rain, bed storm, bed night rain, easterly rain, sex, ups and downs, sweating, rain, storm, storm, flurry.

Heavy wind and rain, old rain and present rain, seeing the wind as rain, stormy storm, stormy storm, dead seedlings watching rain, rainy day, rainy day, rainy day, tears, rainy day, counselor, blind storm, blind storm, blind wind and strange rain, blind wind and jealous rain, all over the city.

As follows:

Rain, a natural precipitation phenomenon, is caused by the disturbance of atmospheric circulation, is an indispensable part of the earth's water cycle, and is the only way for almost all terrestrial plants far from rivers to replenish fresh water. Raindrops fall from the sky, big and small, fast and slow. The water on the earth's surface evaporates and rises, and it cools to form rain. Rainwater is the most important fresh water resource in human life.

Rain is water drops falling from the clouds. Water on land and sea surface evaporates into steam. Steam rises to a certain height and turns into water droplets when it is cold. These small water droplets form clouds. They collide with each other in the cloud and merge into large water droplets. When it is too big for the air, it will fall from the clouds and form rain.

Rain is the most important fresh water resource in human life, and plants thrive on the moisture of rain and dew. But the flood caused by rainstorm will also bring great disaster to mankind.

Rain refers to liquid water droplets falling from the atmosphere to the ground. There are many reasons for the rain, and the manifestations are unique, including Mao Mao rain, continuous rain and pouring rain. After the water on the earth is irradiated by sunlight, it becomes steam and is evaporated into the air. Water vapor condenses into small water droplets when it meets cold air at high altitude.